<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	<script type="text/javascript">
		var a="afafafafaf";
		var b=a.indexOf("f");
		alert(b);
		var c=a.substr(0,3);
		alert(c);
		var d=a.substring(3,7);
		alert(d);
		var e=a.charAt(5);
		document.write(e);
		var f=String.fromCharCode("105");
		document.write(f);
		var ff="hello,world";
		alert(ff.anchor("百度"));
		document.write(ff.big());
		document.write(ff.blink());
	</script>
	</head>
	<body>
	</body>
</html>
